Big Thunder Mountain Railroad is an indoor/outdoor mine train roller coaster located in Frontierland at several Disneyland-style Disney Parks worldwide. The ride exists at Disneyland Park (California) and the Magic Kingdom at Walt Disney World as Big Thunder Mountain Railroad, and at Tokyo Disneyland and Disneyland Park (Paris) as Big Thunder Mountain. Big Thunder Mountain Railroad is also the name of the fictional rail line the roller coaster depicts.
While the design of the Walt Disney World version of this roller coaster was done first, Disneyland's version of Big Thunder Mountain Railroad was the first one built. The track layout was mirrored, placing the attraction to the right of Rivers of America, if viewed from the central hub. (In Walt Disney World, the attraction is located to the left of Rivers of America.) To better fit with the adjacent Fantasyland areas of the theme park, the original Walt Disney World design had to be replaced with something more appropriate for Disneyland. The original design featured sharp-edged mountains and vibrant colors of Monument Valley, Arizona. Instead, Disneyland's version was developed with more rounded features and muted colors resembling the Bryce Canyon hoodoos in Utah.
Upon entering the attraction, the queue winds through a narrow rock wall and passing by the tracks. The surrounding walls were originally created from 100 tons of gold ore from Rosamond.
Leaving the outdoor station, trains enter a tunnel, make a right hand turn, then a left hand turn before climbing the first lift hill, which takes trains through a cavern full of stalactites. Leaving the lift hill, the train drops away to the right, then levels out and makes a left hand turn. The track then crosses under the second lift hill drop before making a right hand turn. The sounds of coyotes can be heard as the train descends into a long, dark tunnel. At the end of the tunnel, the train hits a trim brake, exits the tunnel, and climbs the second lift hill. At the top of the lift, an animatronic goat bleats at passing guests as the train drops away to the right, crosses under the lift hill, and rises up into a downward spiraling clockwise helix. Leaving the helix, the train shoots through a small canyon, then drops down into a mining camp, where it hits another trim brake. The train then makes a left hand turn, enters another tunnel, and climbs the third lift hill. As the train climbs the lift, the tunnel is dynamited, and artificial smoke is blasted in guests' faces as the train crests the lift and exits the tunnel. The train then drops to the right, towards the river, then makes a right hand turn and passes through a short tunnel. After crossing over the drop, the trains make a left hand turn as they pass through the ribcage of a T-rex skeleton, hit a trim brake, then make a right hand turn into the final brakes. The train then travels by the buildings of Rainbow Ridge as it returns to the station.
On January 7, 2013, the ride was closed for an extensive refurbishment that included a new track, trains, scenery, and new effects on the third lift hill. The attraction reopened on March 17, 2014. The new track was fabricated by Dynamic Structures, the company that had previously rehauled the coaster track in Space Mountain.
Although the details of the backstory vary from park to park, all follow the same general story arcs. Some time in the late 1800s, gold was discovered on Big Thunder Mountain in the American Southwest. Overnight, a small mining town became a thriving mining town (the name of the town varies from ride to ride. In the California ride, the town is known as Rainbow Ridge. In the Florida version, the town is known as Tumbleweed, and in Paris, the town is known as Thunder Mesa.). Mining was prosperous, and an extensive line of mine trains was set up to transport the ore. Unknown to the settlers, the Mountain was a sacred spot to local Native Americans and was cursed.
Before long, the settlers' desecration of the mountain caused a great tragedy, which, depending on the park, is usually depicted to be an earthquake (in the Paris and California versions of the ride), a tsunami (in the Tokyo version of the ride), a flash flood (in the Florida version of the ride), which befell the mines and town, and the town was abandoned. Some time later, the locomotives were found to be racing around the mountain on their own, without engineers or a crew. The Big Thunder Mountain Railroad was founded in the old mining camp to allow tourists to take rides on the possessed trains.
Inspired by real-life Bryce Canyon, the Hoodoos of Big Thunder in Disneyland as seen from the Big Thunder Trail that passes behind the ride.